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If the current flows in a conductor in West - East direction, what will be the deflection of magnetic needle?

 If the current flows through a conductor from west to east, the magnetic field around the conductor can be determined using the right-hand rule. Here’s the process:

  1. Right-hand rule: Point your right thumb in the direction of the current (east).
  2. Your fingers will curl in the direction of the magnetic field around the conductor.

Given the current direction is from west to east, let's determine the deflection of the magnetic needle:

  • Above the conductor: The magnetic field will point towards the south.
  • Below the conductor: The magnetic field will point towards the north.

When you place a magnetic needle (like a compass) near the conductor, it will align itself with the magnetic field lines.

  • If the magnetic needle is placed directly above the conductor, the north end of the needle will deflect towards the south.
  • If the needle is placed directly below the conductor, the north end of the needle will deflect towards the north.

In summary, the deflection of the magnetic needle depends on its position relative to the conductor:

  • Above the conductor: The north end of the needle will deflect towards the south.
  • Below the conductor: The north end of the needle will deflect towards the north.
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